The SKKT71/16E is a dual SCR thyristor module from SEMIKRON's SKKT series, rated for 71A average on-state current (I_TAV) and a 1600V repetitive peak off-state voltage (V_DRM/V_RRM). Built in SEMIKRON's industry-standard SEMIPAK housing with an isolated copper baseplate, it delivers reliable phase control performance in demanding power conversion environments. With low thermal resistance and a gate trigger current compatible with standard drive circuits, the SKKT71/16E is a proven building block for medium-power industrial converter designs requiring dependable thyristor characteristics and long service life.

The SKKT71/16E sees wide deployment across industrial power electronics where controlled rectification and AC power regulation are essential. Typical applications include three-phase DC motor drive front-ends, thyristor-controlled soft starters, resistance heating controllers, electroplating rectifiers, UPS input stages, and crane or hoist drive systems. Its 1600V voltage class provides adequate headroom for 690VAC line-connected designs, while the 71A current rating suits mid-range drive and power supply platforms. The isolated baseplate simplifies heatsink integration without additional insulation hardware, reducing assembly time and improving long-term thermal reliability in the field.

Quick Reference: SKKT71/16E

Key Features of the SKKT71/16E:

• Dual SCR (back-to-back thyristor) configuration in a single SEMIPAK module for compact converter layouts
• 1600V V_DRM/V_RRM blocking voltage rating — suitable for 690VAC three-phase line-connected applications with standard derating
• 71A I_TAV average on-state current with low on-state voltage drop (V_T) for reduced conduction losses
• Isolated copper baseplate with industry-standard SEMIPAK footprint, enabling direct heatsink mounting without supplemental isolation pads
• Low thermal resistance junction-to-case (R_th(j-c)) supporting high power density designs with forced-air or liquid cooling
• Gate trigger specifications compatible with standard SCR gate driver ICs and pulse transformer drive circuits

With a factory lead time of approximately 39 weeks for new production, the SKKT71/16E presents a significant sourcing challenge for maintenance teams facing unplanned equipment downtime or production engineers building against tight delivery schedules. SEMIKRON's SKKT-series modules are widely embedded in legacy drive platforms and industrial systems that remain in active service decades after original commissioning. ATI Accurate Technology actively manages inventory pipelines and distributor networks to locate available stock of long-lead and obsolescence-risk components like the SKKT71/16E — often bridging the gap when standard distribution channels fall short.

ATI Accurate Technology is headquartered in Palmetto, Florida, and specializes in IGBTs, thyristors, diodes, and rectifier modules — including hard-to-find and long-lead-time parts. Orders placed before 5PM EST ship same day when stock is available. Contact our team for current inventory status, volume pricing, and sourcing options on the SKKT71/16E and related SEMIKRON modules. Call 239-734-7566 or email sales@igbts.us.